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cryo-EM structure of the E. coli replicative DNA polymerase complex in DNA free state (DNA polymerase III alpha, beta, epsilon, tau complex)
Sample DNA POLYMERASE III CATALYTIC COMPLEX (ALPHA, EPSILON, BETA, TAU)
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK III Cryogen Name ETHANE Sample Vitrification Details LIQUID ETHANE
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 16970 Reported Resolution (Å) 8.34 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type HALF-MAPS REFINED INDEPENDENTLY Symmetry Type POINT Point Symmetry C1
Data Acquisition Detector Type GATAN K2 QUANTUM (4k x 4k) Electron Dose (electrons/Å**2) 40
Imaging Experiment 1 Date of Experiment 2014-05-12 Temperature (Kelvin) 85 Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 2000 Maximum Defocus (nm) 4000 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification 64000 Calibrated Magnification 28409 Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details TITAN KRIOS GOOD MICROGRAPHS WERE SELECTED FOR DIGITISATION